| Author | Message | ||
     Dietmar Rimkus Rating: N/A |
After having had small experience with all disadvantages in nuview recording we think about a system with two cameras and an portable computer. Has anybody experience on this region? | ||
| M.H. Rating: N/A |
Yes. I am developing such system. The key answer on your question is probably : It does not work now in enought good quality for profesional usage but it is close ... Key problems: USB 1.1 bandwitch (12 Mbs) limits quality for even good WebCameras ... WebCameras using USB 2.0 or FireWire are not enought stable now, maybe the iBoot2 model, but I did not test it up to now and I saw a lot of bugs report about it ... I saw horrible bugs report on the ADS tech USB2/FireWire products as well ... Dual DV camera needs really powerful computer and in addtion DV compression due to its interlaced nature and 4:1:1 sampling is sub optimal for stereoscopy ... Another problem for normal DV camera is the focusing/apreture/gain setup synchronization with is hard to do by fireware communication only .. So what is the good solution ? Wait for better USB 2 camera or use genlocked dual betacam ... | ||
| Puppet Kite Kid Rating: N/A |
I have been using two standard (cheap analog) Sony camcorders set up on a mounting bar, with one cam upside-down so that they can be as close as 2 inches apart. I record them separately without genlocking, by pressing both record buttons at *approximately* the same time, then do the DV capturing and *exact* syncing with a computer, later, including stereo audio. To get accurate syncing, you have to capture each video side to a computer using 480 horizontal lines (both fields) then use standard 2D deinterlacing procedures to sync the two to the nearest _field_. After doing the math, you can see that this means syncing to better than 120th of a second (at 30fps NTSC capture) is possible. I have yet to have a problem with this technique, including shooting running water or rapidly spinning objects. A resulting full-double resolution, interlaced video, like 1706 X 480 (double-width 16/9, parallel, stereoscopic video) is possible, or you can blend the fields for a very natural film-like look, and make any smaller resolution needed. I change videos on my website quite often, but my last one(s) shows waves from the Pacific Ocean slamming the rocks and observation deck on the coastline. This is a great test for the syncing process that I use: "Pacific Coast Storm Watch" http://www.PuppetKites.net (near the top of the videos section) If you have Adobe After Effects commercial software, this process is simple to do. You can also do it with a PC, using VirtualDub and AviSynth freewares. My instructions are here: http://www.puppetkites.net/3DDVwith2Cams/ P. K. Kid 3D Adventures Of The Puppet Kite Kid: (All G-Rated) http://www.PuppetKites.net | ||
| Anonymous Rating: N/A |
Good-looking site. Congratulations. |
